BAGHDAD -- It's been one of the deadliest days in Iraq this year.
Officials say more than 90 people have been killed and more than 360 wounded in at least 21 separate bombings and shootings in 13 cities.
The attacks began before dawn, with gunmen killing soldiers at an army post in central Iraq. A few hours later, a car exploded in a lot where police recruits were waiting in line to apply for jobs outside Kirkuk in the country's north.
The carnage stretched into the country's south, where bombs stuck to two parked cars exploded in the Shiite-dominated city of Nasiriyah.
Late in the day, bombs exploded in Shiite areas of Baghdad.
No group immediately claimed responsibility, but Iraq's Interior Ministry blamed al-Qaida in Iraq. It says the attacks were aimed at provoking sectarian and political tensions.
The violence came on the same day Iraq's fugitive Sunni vice president was sentenced to death by hanging on charges he masterminded death squads against rivals. The trial has fueled sectarian tensions in Iraq.